Hmm, is the event code actually generated by the uhd driver? It looks like

the definition of EVENT_CODE_SEQ_ERROR that generates this log item comes

from include/uhd/types/metadata.hpp

Gullik

bool uhd_device::recv_async_msg()
{
	uhd::async_metadata_t md;

	thread_enable_cancel(false);
	bool rc = usrp_dev->get_device()->recv_async_msg(md);
	thread_enable_cancel(true);
	if (!rc)
		return false;

	// Assume that any error requires resynchronization
	if (md.event_code != uhd::async_metadata_t::EVENT_CODE_BURST_ACK) {
		aligned = false;

		if ((md.event_code != uhd::async_metadata_t::EVENT_CODE_UNDERFLOW) &&
		    (md.event_code != uhd::async_metadata_t::EVENT_CODE_TIME_ERROR)) {
			LOGC(DDEV, ERR) << str_code(md);
		}
	}

	return true;
}